Positive solutions of the second-order differential systems in reactor dynamics

@article{Chen2012PositiveSO,
  title={Positive solutions of the second-order differential systems in reactor dynamics},
  author={Ruipeng Chen and Ruyun Ma},
  journal={Applied Mathematics and Computation},
  year={2012},
  volume={219},
  pages={3882-3892}
}
In this paper, we are concerned with the existence of positive solutions of the second-order cooperative system